This paper presents a development of our comic generation system that automatically summarizes players' actions and interactions in the virtual world. The feature of the system is that it analyzes the log and screenshots of a game, decides which events are important and memorable, and then generates comics in a fully automatic manner. Also, the interface of our system allows users to customize their own comics. As a result, users can easily use the system to share their stories and create individual comics for archival purposes or storytelling.